fix for 0.19.2

nimterop/types.nim

@@ -1,5 +1,5 @@
 #[
-TODO:
+note:
 this should pull as few dependencies as needed by the wrapper, one option is, for the types that carry a dependency, wrap the type declaration inside something like:
 ```
 when defined(nimteropNeeds_va_list):
@@ -7,16 +7,34 @@ when defined(nimteropNeeds_va_list):
     va_list* {.importc, header:"<stdarg.h>".} = object
 ```
 
-TODO:
+note:
 nimterop should replace the generated wrappers with the nim-idiomatic version, eg:
 ```
 proc mylib(a: ptrdiff_t) => proc mylib(a: ByteAddress)
 ```
+
+note:
+as needed, provide (platform specific) nim aliases which can be used eg to compute sizeof, eg:
+type foo_t* {.importc, header: "<foo.h>".} = distinct int32
 ]#
 
-from std/time_t import nil # for time_t
-
-export time_t
+when (NimMajor, NimMinor, NimPatch) < (0, 19, 9):
+  # clean this up once upgraded; adapted from std/time_t
+  when defined(nimdoc):
+    type
+      impl = distinct int64
+      Time = impl
+  elif defined(windows):
+    when defined(i386) and defined(gcc):
+      type Time {.importc: "time_t", header: "<time.h>".} = distinct int32
+    else:
+      type Time {.importc: "time_t", header: "<time.h>".} = distinct int64
+  elif defined(posix):
+    import posix
+  type time_t* = Time
+else:
+  import std/time_t as time_t_temp
+  type time_t* = time_t_temp.Time
 
 type
   ptrdiff_t* = ByteAddress